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Date: Thu, 12 Oct 2017 19:18:07 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, jhs@...atatu.com, xiyou.wangcong@...il.com,
mlxsw@...lanox.com, andrew@...n.ch,
vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
michael.chan@...adcom.com, ganeshgr@...lsio.com,
jeffrey.t.kirsher@...el.com, saeedm@...lanox.com,
matanb@...lanox.com, leonro@...lanox.com, idosch@...lanox.com,
jakub.kicinski@...ronome.com, ast@...nel.org, daniel@...earbox.net,
simon.horman@...ronome.com, pieter.jansenvanvuuren@...ronome.com,
john.hurley@...ronome.com, edumazet@...gle.com, dsahern@...il.com,
alexander.h.duyck@...el.com, john.fastabend@...il.com,
willemb@...gle.com
Subject: [patch net-next 18/34] net: sched: cls_u32: call block callbacks for offload
From: Jiri Pirko <jiri@...lanox.com>
Use the newly introduced callbacks infrastructure and call block
callbacks alongside with the existing per-netdev ndo_setup_tc.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
net/sched/cls_u32.c | 72 ++++++++++++++++++++++++++++++++++++++---------------
1 file changed, 52 insertions(+), 20 deletions(-)
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index f407f13..24cc429 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -465,39 +465,57 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key)
static void u32_clear_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h)
{
struct net_device *dev = tp->q->dev_queue->dev;
+ struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
- if (!tc_should_offload(dev, 0))
- return;
-
tc_cls_common_offload_init(&cls_u32.common, tp);
cls_u32.command = TC_CLSU32_DELETE_HNODE;
cls_u32.hnode.divisor = h->divisor;
cls_u32.hnode.handle = h->handle;
cls_u32.hnode.prio = h->prio;
- dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
+ if (tc_can_offload(dev))
+ dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false);
}
static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
u32 flags)
{
struct net_device *dev = tp->q->dev_queue->dev;
+ struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
+ bool skip_sw = tc_skip_sw(flags);
+ bool offloaded = false;
int err;
- if (!tc_should_offload(dev, flags))
- return tc_skip_sw(flags) ? -EINVAL : 0;
-
tc_cls_common_offload_init(&cls_u32.common, tp);
cls_u32.command = TC_CLSU32_NEW_HNODE;
cls_u32.hnode.divisor = h->divisor;
cls_u32.hnode.handle = h->handle;
cls_u32.hnode.prio = h->prio;
- err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
- if (tc_skip_sw(flags))
+ if (tc_can_offload(dev)) {
+ err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32,
+ &cls_u32);
+ if (err) {
+ if (skip_sw)
+ return err;
+ } else {
+ offloaded = true;
+ }
+ }
+
+ err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw);
+ if (err < 0) {
+ u32_clear_hw_hnode(tp, h);
return err;
+ } else if (err > 0) {
+ offloaded = true;
+ }
+
+ if (skip_sw && !offloaded)
+ return -EINVAL;
return 0;
}
@@ -505,28 +523,27 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
static void u32_remove_hw_knode(struct tcf_proto *tp, u32 handle)
{
struct net_device *dev = tp->q->dev_queue->dev;
+ struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
- if (!tc_should_offload(dev, 0))
- return;
-
tc_cls_common_offload_init(&cls_u32.common, tp);
cls_u32.command = TC_CLSU32_DELETE_KNODE;
cls_u32.knode.handle = handle;
- dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
+ if (tc_can_offload(dev))
+ dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
+ tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, false);
}
static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
u32 flags)
{
struct net_device *dev = tp->q->dev_queue->dev;
+ struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
+ bool skip_sw = tc_skip_sw(flags);
int err;
- if (!tc_should_offload(dev, flags))
- return tc_skip_sw(flags) ? -EINVAL : 0;
-
tc_cls_common_offload_init(&cls_u32.common, tp);
cls_u32.command = TC_CLSU32_REPLACE_KNODE;
cls_u32.knode.handle = n->handle;
@@ -543,13 +560,28 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
if (n->ht_down)
cls_u32.knode.link_handle = n->ht_down->handle;
- err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32, &cls_u32);
- if (!err)
- n->flags |= TCA_CLS_FLAGS_IN_HW;
+ if (tc_can_offload(dev)) {
+ err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSU32,
+ &cls_u32);
+ if (err) {
+ if (skip_sw)
+ return err;
+ } else {
+ n->flags |= TCA_CLS_FLAGS_IN_HW;
+ }
+ }
- if (tc_skip_sw(flags))
+ err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSU32, &cls_u32, skip_sw);
+ if (err < 0) {
+ u32_remove_hw_knode(tp, n->handle);
return err;
+ } else if (err > 0) {
+ n->flags |= TCA_CLS_FLAGS_IN_HW;
+ }
+
+ if (skip_sw && !(n->flags && TCA_CLS_FLAGS_IN_HW))
+ return -EINVAL;
return 0;
}
--
2.9.5
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